Definitions
The form of energy a particle has due to its motion
What is kinetic energy?
Energy per photon of 500nm wavelength(joules, h =6.626x10-34)
What is 4.0 x 10-19 J.
New discovery exemplified by the photo electric effect
What is the particle nature of light?
First observed the photoelectric effect
Who is Heinrich Hertz?
When a particle gains enough energy to leave an atom
What is the photoelectric effect?
Wavelengths that will successfully cause photoelectric emission on a material with a work function of 4.28
What are wavelengths less than 290nm?
The factor that effects the Kinetic Energy of photoelectrons
What is photon frequency?
First explained the photoelectric effect using the concept of photons
Who is Albert Einstein?
Type of electrons produced during this phenomenon
What are photoelectrons?
Kinetic energy of most energetic photoelectron when light of f=4x1015 Hz hits a mercury plate with a work function of 4.5eV. (h=4.1356x10-15)
What is 12.0 eV ?
Material that exhibits photo electric effect
What is every material?
A common technology that utilizes the photoelectric effect
What are solar panels?
The minimum energy required to escape an atom
What is work function?
Minimum frequency for emission of photoelectrons with .8 eV of Kinetic Energy when photons of 2.96 eV strike a surface. (h=4.1356x10-15)
What is 5.22 x 1014 Hz?
Reason why some materials better exhibit photoelectric effect
What is lower work function?
The year the Effect was observed
When is 1887?
The minimum negative voltage applied to prevent movement of all photoelectrons
What is stopping potential?
The wavelength of incident light when zinc threshold frequency is 1.05 x 1015 and the kinetic energy of emitted photoelectrons is 2eV(h = 4.1356 x 10-15)
What is 196nm?
The factor that effects the number of electrons emitted
What is intensity?
Einstein's job when he explained the photoelectric effect
What is a patent Clerk?